<!-- <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h1>hello world</h1>
    <form action="/login" method="post">
        <input type="text" name="name111111" placeholder="文本"> <br>
        <input type="password" name="password" placeholder="密码"> <br>
        <input type="submit" value="提交" name="submit">
    </form>
</body>
</html> -->

<html>
    <head>
        <meta charset="utf-8">
    </head>
    <body>
        <form action="/login" method="post">
            <input type="text" name="username" placeholder="username">
            <input type="password" name="password" placeholder="password">
            <input type="submit" value="Login">
        </form>
    </body>
</html>